Machine fob trimming- wall-paper



UNITED STATES PATENT OFFICE.

A. L. WHIPPLE, OF ELMIRA, NEW YORK.

MACHINE FOR TRIMMING WALL-PAPER.

Specification of Letters Patent No. 25,696, dated October 4, 1859.

To all whom 'it may concern:

Be it known that I, A. L. WHIPPLE, of Elmira, in the county of Chemung and State of New York, have invented a new and Improved Machine for Trimming Paper-Hangings; and I do hereby declare that the followin@ is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure l, is a plan View; Fig. 2, is a side elevation; Fig. 3, is an end elevation; Fig. 4, a sectional view of the spool-block and portion of the bed, B.

Similar letters refer to corresponding parts in all the figures.

As represented in the drawings, A is the frame of the machine, which supoprts, by the standards b b, the spindle, E, for rolling up the paper as it is trimmed. On the opposite side, a bed., B, is attached to the frame by means of the bolt c passing through a slot, which admits of the bed sliding endwise to a certain extent. This bed has a grooved way upon its upper side, in which is fitted the movable spool-block, G, which is provided with the spring, CZ, to hold it firmly on whatever part of the bed it is placed, and yet allow it to be moved the length of the ways to adapt it to the length of the roll.

At one end of bed B, the spool-head D, is pivoted to the standard e which is permanently attached to the bed; while the opposite spool-head C, has a spindle, f, which passes through the block, G, in which it revolves, and is provided with a coiled spring t'. which throws it outward from the block, but yields when endwise pressure is exerted against the head. The roll of paper to be trimmed is placed in this spool, the block G, being run on the bed far enough to receive it on the pivots g g, where it is crowded up till the coiled spring presses it firmly against the fixed head D.

Intermediate between the spool and the reeling spindle E, a lever, F, is pivoted at one end of the frame. On the fulcrum end of this standards arise, which form bearings for the shafts which carry the rotary knives or shears, a' a, by which the paper is cut. These may be circular knives as represented, with their aXes diverging to bring the edges in closer contact at the cutting point, or any other variety of cutters adapted to the purpose. A bar of wood, I-I, elevated above the lever to the point of contact of the knives, forms a friction break for the paper as it is drawn over it, keeping it smooth and steady, while the opposite end serves as a handle by which the lever is moved to regulate the direction of the cutting.

A hand crank is attached to the upper knife spindle by which vmotion is given, and it is conveyed to the lower knife, and to the reeling spindle, by means of pulleys and bands, or by gearing.

The operation is as follows: A roll of paper is placed between the spool-heads C, D, and the bed, B, adjusted to bring the edge to be trimmed on a line with the cutters, when the end is passed over the brake H, between the knives and caught upon the spindle E, as it is revolved by means of the crank it. The spindle rolls the paper around itself, as it unwinds it from the spool, the

pressure of the head C, preventing it from unwinding too fast, and the cutters remove the edge in the meanwhile. The operator turns the crank with his right hand, while with his left he holds the end of the lever and bar H, moving it back and forth as is required to make the knives follow the edge of the pattern, which is seldom or never perfectly straight.

The paper being drawn through straight,

and the cutters being attached to the lever F, the slightest movement of the latter changes the direction in which they cnt, and the operator can with perfect ease follow the edge of the figure so as to insure its matching its adjunct however untrue it may be. Vhen a roll is trimmed it is removed by raising the end of the spindle from its bearing and slipping it off.

These improvements render the machine A. L. WHIPPLE.

Witnesses:

JAMES LINDSAY, O. HARDENBROOK. 

